1 
NQueens Combinatorial Puzzle meets Cats 
386 slides 



2 
Refactoring: A First Example  Martin Fowler’s First Example of Refactoring, Adapted to Java 
95 slides 


3 
Refactoring: A First Example  Martin Fowler’s First Example of Refactoring, Adapted to Scala 
93 slides 


4 
Function Applicative for Great Good of Palindrome Checker Function 
71 slides 



5 
Game of Life  Polyglot FP  Haskell and Scala  Part 1 
70 slides 



6 
‘goto’ generalpurpose sequential collections  from Java To Scala 
67 slides 



7 
Folding Unfolded 
58 slides 



8 
Sierpinski Triangle  Polyglot FP for Fun and Profit  Haskell and Scala 
58 slides 



9 
NQueens Combinatorial Problem  Polyglot FP for Fun and Profit – Haskell and Scala  Part 2 
58 slides 



10 
The Sieve of Eratosthenes  Part 2  Genuine versus Unfaithful Sieve 
57 slides 



11 
Game of Life  Polyglot FP  Haskell and Scala  Part 2 
55 slides 



12 
NQueens Combinatorial Problem  Polyglot FP for Fun and Profit – Haskell and Scala  Part 4 
55 slides 



13 
Folding Unfolded  Part 4 
54 slides 



14 
Folding Unfolded  Part 3 
53 slides 



15 
Game of Life  Polyglot FP  Haskell and Scala  Part 3 
52 slides 



16 
The Functional Programming Triad of map, filter and fold 
51 slides 






17 
The Sieve of Eratosthenes  Part 1 
50 slides 





18 
Folding Unfolded  Part 5 
48 slides 



19 
The Expression Problem Part 1 
47 slides 




20 
Folding Unfolded  Part 2 
46 slides 



21 
Algebraic Data Types for Data Oriented Programming  From Haskell and Scala to Java 
46 slides 




22 
Applicative Functor  Part 2 
44 slides 



23 
From Scala Monadic Effects to Unison Algebraic Effects 
44 slides 



24 
Scala Left Fold Parallelisation  Three Approaches 
44 slides 


25 
Applicative Functor  Part 3 
38 slides 



26 
Direct Style Effect Systems  The Print[A] Example  A Comprehension Aid 
37 slides 



27 
The Expression Problem Part 2 
35 slides 



28 
Scala 3 by Example  Algebraic Data Types for Domain Driven Design  Part 1 
34 slides 



29 
NQueens Combinatorial Problem  Polyglot FP for Fun and Profit – Haskell and Scala  Part 1 
34 slides 



30 
Kleisli Composition 
33 slides 



31 
The aggregate function  from sequential and parallel folds to parallel aggregation 
31 slides 



32 
Quicksort  a whistlestop tour of the algorithm in five languages and four paradigms 
28 slides 







33 
Computer Graphics in Java and Scala  Part 1b 
28 slides 



34 
Fusing Transformations of Strict Scala Collections with Views 
28 slides 


35 
NQueens Combinatorial Problem  Polyglot FP for Fun and Profit – Haskell and Scala  Part 3 
27 slides 



36 
Computer Graphics in Java and Scala  Part 1 
25 slides 



37 
Monad Fact #4 
24 slides 


38 
The Uniform Access Principle 
22 slides 


39 
Scala 3 enum for a terser Option Monad Algebraic Data Type 
21 slides 


40 
Applicative Functor 
19 slides 



41 
Sum and Product Types  The Fruit Salad & Fruit Snack Example 
19 slides 





42 
Monad Fact #6 
18 slides 



43 
Compositionality and Category Theory 
17 slides 


44 
Monad Fact #5 
17 slides 


45 
Monad Fact #3 
16 slides 


46 
Kleisli composition, flatMap, join, map, unit  implementation and interrelation  V2 updated for Scala 3 
16 slides 



47 
Tagless Final Encoding  Algebras and Interpreters and also Programs 
16 slides 


48 
Left and Right Folds  Comparison of a mathematical definition and a programmatic one 
14 slides 



49 
Functor Laws 
13 slides 


50 
Monad Laws Must Be Checked 
13 slides 



51 
Functional Core and Imperative Shell  Game of Life Example  Haskell and Scala 
13 slides 



52 
Side by Side  Scala and Java Adaptations of Martin Fowler’s Javascript Refactoring Example 
13 slides 



53 
Nat, List and Option Monoids  From scratch  Combining and Folding  An example 
12 slides 



54 
Monad Fact #2 
9 slides 


55 
Monad Fact #1 
8 slides 


56 
Folding Cheat Sheet #4 
8 slides 



57 
Definitions of Functional Programming 
7 slides 


58 
A sighting of traverseFilter and foldMap in Practical FP in Scala 
6 slides 


59 
Folding Cheat Sheet #3 
6 slides 


60 
A sighting of traverse_ in Practical FP in Scala 
5 slides 


61 
The Monad Fact Series 
4 slides 



62 
A sighting of sequence function in Practical FP in Scala 
4 slides 


63 
Folding Cheat Sheet #2 
4 slides 


64 
Folding Cheat Sheet #1 
3 slides 

